Is that so ? But then if diploma not relevant to the industry,
does that mean that the starting pay would be lower ?
starting pay is one of it. 
but it also depend on the job scope and other factor.
The news reported that a degree graduate works at RWS as sampan
man 
The amount of money you get is actually how much value you add
to other people's life. It's not about getting a $2000 job, but
it's more meaningful to look at another way round saying how much
you benefit other people will contribute to how much you will be
earning.